1 ZXC N-(9h-purin-6-yl)thiophene-2-carboxamide 1.000 2 A1ALS N-[(1s)-1-(3,4-dihydro-2h-1lambda~4~-thiophen-5-yl)-2-methylpropyl]-7h-pyrrolo[2,3-D]pyrimidin-4-amine 0.714 3 QXC N-[(pyridin-2-yl)methyl]-7h-pyrrolo[2,3-D]pyrimidin-4-amine 0.700